Document Type
Article
Publication Title
Physical Review B
Abstract
We report the observation of multiphoton photoluminescence excitation (PLE) below the resonant energies of nitrogen vacancy (NV) centers in diamond. The quadratic and cubic dependence of the integrated fluorescence intensity as a function of excitation power indicates a two-photon excitation pathway for the NV- charge state and a three-photon process involved for the neutral NV0 charge state, respectively. Comparing the total multiphoton energy with its single-photon equivalent, the PLE spectra follows the absorption spectrum of single photon excitation. We also observed that the efficiency of photoluminescence for different charge states, as well as the decay time constant, was dependent on the excitation wavelength and power.
DOI
https://doi.org/10.1103/PhysRevB.97.134112
Publication Date
4-17-2018
Recommended Citation
Ji, Peng; Balili, Ryan; Beaumariage, Jonathan; and Mukherjee, Silpa, "Multiple-photon excitation of nitrogen vacancy centers in diamond" (2018). University Faculty Publications and Creative Works. 136.
https://digitalcommons.calvin.edu/calvin_facultypubs/136